AOG
The 12 Regional Electricity Boards became the Big Six through a series of mergers and aquisitions. The Government is powerless (no pun intended) to prevent private companies merging. It was neither Labour policy nor a desire that these firms paired down to become just 6.
It is interesting to see the fate of the original 12 regional boards which we all owned, and how they are now largely in Spanish, German and French ownership.
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South of Scotland Electricity Board became Scottish Power Plc. In 2007 it was acquired by the Spanish energy utility Iberdrola.
North of Scotland Hydro Board became Scottish Hydro-Electric Plc then went on to merge with Southern Electric to become Scottish & Southern.
East Midlands Electricity Board. Acquired by Powergen in 1998. The retail supply business is now part of German E.On.
Eastern Electricity
Sold to the US firm Texas Utilities and became TXU Energi, part of TXU Europe. In 2002 it was sold to Powergen, which was subsequently acquired by the German utility company E.On, and the operations were rebranded in 2004.
London Electricity Board. Acquired by US based Entergy in 1996 for £1.3bn ($2.1bn). Acquired by EDF International in 1998.
Merseyside and North Wales Electricity Board. Manweb plc was acquired by the Spanish energy utility Iberdrola.
Midlands Electricity Board. now uses the name of its German parent E.On. The supplier side of the former MEB business is npower UK.
North Eastern Electricity Board. The electricity distribution business is today operated by CE Electric UK, a subsidiary of MidAmerican Energy Holdings Company. The successor company to the retail supply business is npower aGerman company.
North Western Electricity Board. Merged with Northwest Water in 1995 to form United Utilities, the electricity businesses of which were subsequently sold off, with the retail supply arm of Norweb becoming part of TXU Energi, now part of E.On.
South Eastern Electricity Board. Now owned by UK Power Networks along with Eastern Electricity and London Electricity. It markets to the public as part of Cheung Kong Infrastructure (CKI).
South Wales Electricity Board, later known as SWALEC. SWALEC was later acquired by Scottish & Southern Energy plc, part of Spanish energy utility Iberdrola.
South Western Electricity Board, SWEB was acquired by London Electricity (owned by EDF) in 1999. The distribution business is part of Western Power Distribution and the retail business is part of French EDF Energy.
Southern Electricity Board merged in 1998 with Scottish Hydro-Electric plc to form Scottish & Southern Energy plc. The combined company markets outside its traditional areas under the SSE branding.
Yorkshire Electricity Board. Sold to the US company Innogy in 2001, and then acquired by the German utility RWE the following year.